A058693 - OEIS

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A058693

Number of nonisomorphic matroids of rank 3 on n labeled points.

1, 4, 13, 38, 108, 325 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`3,2`
	LINKS	`Table of n, a(n) for n=3..8.` `W. M. B. Dukes, Tables of matroids` `W. M. B. Dukes, Counting and Probability in Matroid Theory, Ph.D. Thesis, Trinity College, Dublin, 2000.` `Index entries for sequences related to matroids`
	CROSSREFS	`A diagonal of A053534.` `Sequence in context: A094706 A056014 A159036 * A027076 A183112 A105693` `Adjacent sequences: A058690 A058691 A058692 * A058694 A058695 A058696`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane, Dec 30 2000`
	STATUS	`approved`

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Last modified June 20 00:15 EDT 2013. Contains 226416 sequences.